I have a HTC S710 with Windows Mobile 6 Standard, and try to install the purchased Agenda one. The message on the phone is that it is not sucessfull because:

Program or setting cannot be installed because it is not digitally signed with a trusted certificate

What to do about this.

Looking forward to an answer

Hans van Leeuwen

Developer One Support

28th September 2007 11:33 AM

When you see that message in the installation you must quickly answer YES, if you wait too long, it will default to NO and that gives you the message you received. Please try the download again and you will see what I mean.